fbc: add required notice in readme

README.md

@@ -2,7 +2,7 @@
 
 ![GitHub last commit](https://img.shields.io/github/last-commit/keylase/nvidia-patch.svg) ![Latest version](https://img.shields.io/badge/latest%20linux%20driver%20version-440.36-brightgreen.svg)
 
-This patch removes restriction on maximum number of simultaneous NVENC video encoding sessions imposed by Nvidia to consumer-grade GPUs.
+This patch removes restriction on maximum number of simultaneous NVENC video encoding sessions imposed by Nvidia to consumer-grade GPUs. Also there is experimental NvFBC patch available which allows to use NvFBC on consumer-grade GPUs. It should be applied same way as NVENC `patch.sh`, except you have to use `patch-fbc.sh` instead.
 
 Main target operating system is **GNU/Linux**, but for **Windows** support see [**win**](win).
 

tools/readme-autogen/templates/linux_readme_master.tmpl

@@ -2,7 +2,7 @@
 
 ![GitHub last commit](https://img.shields.io/github/last-commit/keylase/nvidia-patch.svg) ![Latest version](https://img.shields.io/badge/latest%20linux%20driver%20version-${latest_version}-brightgreen.svg)
 
-This patch removes restriction on maximum number of simultaneous NVENC video encoding sessions imposed by Nvidia to consumer-grade GPUs.
+This patch removes restriction on maximum number of simultaneous NVENC video encoding sessions imposed by Nvidia to consumer-grade GPUs. Also there is experimental NvFBC patch available which allows to use NvFBC on consumer-grade GPUs. It should be applied same way as NVENC `patch.sh`, except you have to use `patch-fbc.sh` instead.
 
 Main target operating system is **GNU/Linux**, but for **Windows** support see [**win**](win).